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Linear Motion Tips

Covering Linear Motion Systems, Components and Linear Motion Resources

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    • Ball + roller guides
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    • Ball + lead + roller screws
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    • Ball + leadscrew driven
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Ball + lead + roller screws

What are some linear motion options for moving multiple loads independently?

★ By Danielle Collins Leave a Comment

move multiple loads independently

From a mechanical standpoint, one of the more challenging applications in linear motion has traditionally been to move two or more loads independently, as is required in some handling, transport, and inspection applications. While using multiple linear systems, or preassembled actuators, is a simple solution mechanically, this option typically requires a significant amount of space […]

Filed Under: Applications, Ball + lead + roller screws, Ball + leadscrew driven, Belt + chain driven, Belt + chain drives for linear, FAQs + basics, Featured, Linear motors, Rack + pinion driven, Rack + pinion sets

Recirculating roller screws: How do they work and what are their benefits?

★ By Danielle Collins Leave a Comment

Rollvis RVR Recirculating Roller Screw

Screw assemblies that use rollers as the load-carrying element come in several varieties, with the most common being the traditional planetary roller screw, which provides high load capacities and very high rigidity, capable of outperforming ball screw and hydraulic actuators in some heavy-duty applications. But another type of roller screw — the recirculating roller screw — […]

Filed Under: Ball + lead + roller screws, FAQs + basics, Featured

How to account for ball and lead screw inertia during system design

★ By Danielle Collins Leave a Comment

When sizing a motion system with a ball or lead screw drive, the first step is to determine the screw diameter and lead that can meet the application requirements for thrust force, speed, and compressive (buckling) loads. Once the screw diameter and lead are determined, the next step is to choose a motor that can […]

Filed Under: Applications, Ball + lead + roller screws, Ball + leadscrew driven, FAQs + basics, Featured

Ewellix Planetary roller screw lands on Mars

★ By Kelsey Zebrowski Leave a Comment

Ewellix has developed and manufactured a planetary roller screw that recently landed on Mars as part of NASA’s Mars 2020 Perseverance Rover Mission. Ewellix engineers in Armada, Michigan, worked in collaboration with NASA’s Jet Propulsion Laboratory (JPL) at the California Institute of Technology to develop a roller screw component for the Perseverance Rover that would […]

Filed Under: Ball + lead + roller screws Tagged With: ewellix

Ball and lead screw drunkenness: What is it and when does it matter?

★ By Danielle Collins Leave a Comment

screw drunkenness

Unlike ball screws, which follow industry standards such as DIN ISO 3408, JIS B1192-1997, or ANSI-B5.48 for accuracy classifications, there are no accuracy standards for lead screws. Instead, many lead screw manufacturers have loosely adopted two of the most common ball screw lead accuracy specifications: lead deviation per 300 mm and lead deviation per revolution. Lead deviation […]

Filed Under: Ball + lead + roller screws, Ball + leadscrew driven, FAQs + basics, Featured

More on the performance of roller screws

★ By Miles Budimir Leave a Comment

roller screw

Knowing the differences between the several kinds of roller screws can help determine the best fit for an application. By Michael Boudreau, P.Eng. • Application Engineering Manager | Rollvis S.A. Planetary roller screws — also called satellite roller screws — have long been the primary choice for applications that involve heavier loads and higher forces […]

Filed Under: Ball + lead + roller screws, Featured, Linear actuators (all)

When should you use a bronze lead screw nut?

★ By Danielle Collins Leave a Comment

Lead screw manufacturers offer nuts in a wide array of materials, including various plastics and grades of bronze. And while plastics garner a lot of attention for their versatility and range of suitable applications, lead screw nuts made of bronze are especially well-suited for applications with high loads or extremely high (or low) temperatures. Plastic […]

Filed Under: Applications, Ball + lead + roller screws, FAQs + basics, Featured

What are low outgassing materials for linear motion components in vacuum applications

★ By Danielle Collins Leave a Comment

Outgassing — the release of gas or vapor from a material through desorption, sublimation (the transition of a material from solid directly to gas), or evaporation — is a critical parameter for materials used in vacuum environments. These gasses and vapors can affect the pressure (or level of vacuum) in the vacuum chamber, and outgassed compounds […]

Filed Under: Applications, Ball + lead + roller screws, FAQs + basics, Featured, Rack + pinion sets, Slides + guides (all)

How to make linear motion systems cleanroom compatible

★ By Danielle Collins Leave a Comment

linear motion cleanroom

While we often talk about the importance of keeping contamination out of linear motion components such as linear guides and screws, when these systems are used in a cleanroom, the goal is just the opposite — to keep these components from introducing contamination into the environment. What exactly is a cleanroom? According to ISO 14644-1:2015, […]

Filed Under: Applications, Ball + lead + roller screws, Ball + roller guides, FAQs + basics, Featured, Linear bearings

The top 10 linear motion articles of 2020

★ By Danielle Collins Leave a Comment

linear motion articles

Suffice it to say, pretty much everything about 2020 has been out of the ordinary, and our recap of the top linear motion articles for this year is no exception. For the first time in recent history, only one (1!) of the top 10 articles is about ball or lead screw technologies — a topic that usually […]

Pages: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10

Filed Under: Applications, Ball + lead + roller screws, Ball + leadscrew driven, Ball + roller guides, Belt + chain driven, Featured, Rack + pinion driven, Rack + pinion sets

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